Cite

Map of the United States & Mexico.

MLA

Map of the United States & Mexico. Ensign, Bridgman & Fanning, 1848. https://collections.library.yale.edu/catalog/15536463.

APA, 6th edition

Map of the United States & Mexico. (1848). [Maps]. Ensign, Bridgman & Fanning, https://collections.library.yale.edu/catalog/15536463.